Ticket #32710: 32710.2.diff

wp-admin/js/customize-nav-menus.js

@@ -250 +250 @@
                         });
 
                         self.currentRequest.fail(function( data ) {
-                                $content.empty().append( $( '<p class="nothing-found"></p>' ).text( data.message ) );
+                                $content.empty().append( $( '<div class="nothing-found"></div>' ).html( data.message ) );
                                 wp.a11y.speak( data.message );
                                 self.pages.search = -1;
                         });

wp-includes/class-wp-customize-nav-menus.php

@@ -174 +174 @@
                 $results = $this->search_available_items_query( array( 'pagenum' => $p, 's' => $s ) );
 
                 if ( empty( $results ) ) {
-                        wp_send_json_error( array( 'message' => __( 'No results found.' ) ) );
+                        wp_send_json_error( array( 'message' => '<p>' . __( 'No results found.' ) . '</p><p>' . __( 'You must create and publish content before you can add it as a menu item. You can also add links to external sites in the Custom Links section below.' ) . '</p>' ) );
                 } else {
                         wp_send_json_success( array( 'items' => $results ) );
                 }